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 World Time and Clocks - Clocks are found all over the world and all tell you the same thing wherever you live. We've gathered information about world time and clocks. Things like daylight savings time, world time zones, atomic clocks & more.
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Atomic alarm clocks
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Atomic clock uses an atomic resonance frequency standard to feed its counter. Today's best atomic frequency standards (atomic clocks) are based on more advanced physics involving cold atoms and atomic fountains.
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Atomic Clock
The core of this clock is a microwave cavity containing the ionized gas, a tunable microwave radio oscillator, and
a feedback loop which is used to adjust the oscillator to the exact frequency of the absorption characteristic defined by
the behavior of the individual atoms. The microwave oscillator of the atomic clock fills the chamber with a standing wave
of radio waves. When the radio frequency matches the hyperfine transition frequency of caesium, electrons in the caesium
atoms are able to absorb the radio waves and move between two energy states.
Only those atoms that have changed states are allowed to impinge on a detector. When the incidence of detected atoms
decreases because the frequency of the microwave oscillator has drifted from the true resonance frequency, the frequency
of the oscillator is corrected.
National standards agencies maintain an accuracy of 10-9 seconds per day, and a precision equal to the
frequency of the radio transmitter pumping the maser. The clocks maintain a continuous and stable time scale,
International Atomic Time (TAI). Wikipedia
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Atomic digital clock
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Atomic wall clock
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The most relevant links we could find, placed here free
 Target
- The recognized store for high-quality, stylishly designed items plus all the essentials for your life at low prices. Find and buy atomic time clocks on-line. Shipping across US states. www.target.com
Worldtimeserver
- This site has a freeware atomic clock sync utility that can help you keep your local computer up-to-date with the exact current time. www.worldtimeserver.com
Google Shopping
- An atomic clock Google product search. www.google.co.uk
Atomic Timepieces
Next is a selection of some atomic clock models we could find on the market.
Digital Alarm Clock:
Just enter your time zone, and the built in antenna searches for the nearest signal: U.S., Great Britain, Japan, Germany, or just set the high quality quartz movements manually.
Fittingly these models of atomic clock comes generally in five-language selectable: English, French, Italian, German and Spanish. Features:
- Radio controlled time and date
- Indoor temperature, Moon phase
- Time alarm with snooze
- 12 or 24 hour time mode
- Time Zones from GMT to -12 GMT
- Three letter identification for US time zones
- Price Range: US$19.95 - US$39.95
Atomic Watch:
The tiny radio tower on the watch face is a clue to the true, hi-tech nature of this traditional looking watch. The watch receives radio signals from the U.S. Atomic Clock.
Price: US$189.95
Wall Clocks:
The moment you put in the battery, the watch sets itself by listening for the radio signals of the NIST Atomic Clock. The hands spin at 20 times their normal rate until the signal
is picked up and the time is adjusted to accuracy with less than a one-second deviation in one million years. Price
Range: US$39.95 - US$49.95
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Atomic desktop clock
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Radio controlled clock
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